Signal Generator or Sweep Generator
Radio Dial
Setting
Indicator (Electronic
Voltmeter or
Oscilloscope)
Adjustment
(Shown in
Fig.1)
Remarks
Connections
Frequency
Fashion a loop of
several turns of wire
and radiate a signal
into loop ant. of
receiver.
4.7 MHz
Tuning
capacitor
fully closed.
Output meter across
voice coil.
L9 (SW OSC
MIN)
Adjust for
maximum
output.
Fashion a loop of
several turns of wire
and radiate a signal
into loop ant. of
receiver.
18.5 MHz
Tuning
capacitor
fully open.
Output meter across
voice coil.
CT5 (SW
OSC MAX)
Adjust for
maximum
output.
Fashion a loop of
several turns of wire
and radiate a signal
into loop ant. of
receiver.
4.8 MHz
Tune to
signal.
Output meter across
voice coil.
L4 (SW ANT
MIN)
Adjust for
maximum
output.
Fashion a loop of
several turns of wire
and radiate a signal
into loop ant. of
receiver.
18.0 MHz
Tune to
signal.
Output meter across
voice coil.
CT6 (SW ANT
MAX)
Adjust for
maximum
output.
Repeat steps
(6) ~ (9)
AM-IF ALIGNMENT
Signal Generator or Sweep
Generator
Radio Dial Setting
Indicator (Electronic
Voltmeter or
Oscilloscope)
Adjustment
(Shown in
Fig.1)
Remarks
Connections
Frequency
Fashion a loop of
several turns of
wire and radiate a
signal into loop
ant. of receiver.
455 kHz 30
percent Mod.
at 400 Hz
Point of non-
interference. (on/
about 600 kHz)
Output meter across
voice coil.
T2 (AM IF)
Adjust for
maximum
output.
[*1] Cement antenna bobbin with wax after completing alignment.
FM-IF ALIGNMENT
9
